Pneumatic thread control for looms



Jan. 4, 1949. R. G. TURNER 2,457,952

PNEUMATIC THREAD CONTROL FOR LOOKS Filed lay 4, 14e 2 sheets-sheet 1 Fl GJ M' w I3 o I9 le O o s o O 2| 55 Il Ku f/l.

ATTORNEY Jan. 4, 1949. R. G. TURNER PNEUATIC THREAD CONTROL FOR LOOKS 2 Sheets-Sheet 2 Filedy May 4, 1946 RICHARD 6. TURNER dwf M ATTORNEY Patented Jan. 1949 Richard G1.'l Turner, Worcester,

Crompton Knowles Loom Mau., assigner to Works, Worcester,

Mass., a corporation of Massachusetts Application May 4, 1948, Serial No. 687,411

cutter mechanism for this thread. 'I'he cutter mechanism has ordinarily been located between the magazine and the selvage, and operates on a replenishing beat of the loom to cut the thread 1s claim. (on. 13s-25s) `forwardly this thread comes me the range of invention to provide means by which that end into two parts one of which leads to the shuttle and is removed by the outgoing bobbin, and the other part of which extends to the selvage. It has been customary in the past to hold this second part of the thread by clamp mechanism which releases it at the next transfer, at which time the thread may fall on the lay and be drawn into the warp shed.

It is an important object of my present invention to provide pneumatic thread removing means for this second part of the thread of the outgoing bobbin to prevent it from falling onto the lay when it is released by the clamp. To this end I provide a pneumatic tube which rec procates below the, thread cutter andv clamp an, has an intake mouth to receive the lower end of the thread after it has been cut at the selvage. Since the upper end of the thread is clamped 'the reciprocating pneumatic remover has several'picks in which to attract the lower end of the thread before its upper endis released. It wi1l""thus be seen that` the clamping of the thread'sub-A sequent to selvage cutting materially facilitates entry of the thread into the pneumatic remover. In the sequence or order of operations performed on this part of the thread of the outgoing bobbin it is rst cut and clamped, then cut at the selvag'e, then drawn into the `pneumatic remover while still clamped, and thereafter released by the clamp so-that it can be removed by pneumatic suction.

The thread of the incoming bobbinis ordinarily held at its outer end by some formV of thread holder which in the present instance is Lprefer'- ably pneumatic. On the rst beatup of the lay after transfer this incoming thread .isv moved to the fell of lthe cloth and becomes attached' to the selvage. As the cloth moves progressively of the incoming thread adjacent to the selvage may be drawn into4 the aforesaid pneumatic thread remover and then be cut so that one part o1' it is attracted by the remover and the other part is removed by the thread holder. The means i'or accomplishing this result includes an auxiliary cutter blade under which the thread is moved on the first beatup after transfer. VSubsequently the thread is cut by the selvage cutter and then falls to be attracted by the pneumatic thread remover under the cutter and clamp'. At some later time in the operation o f the loom subsequent to entry of the incoming thread into the pneumatic thread remover another weft replenishingoperation will occur, at which time the incoming thread is cut by the auxiliary cutter and is drawn into the remover. The other part of the thread is removed by the pneumatic thread holder.

The operation of the invention is such that the two threads incident to any given replenish-` ing operation become disconnected from the thread cutter and clamp and are drawn into their respective pneumatic devices before the next pair of threads incident to the following replenishing operation comes under control of the thread cutter and clamp. For this reason there is no opportunity for entanglement of threads of one transfer with those of another and the mechanism keeps itself clear kof weft ends.

The outgoing thread is ordinarily one pick ahead ot'the incoming thread in the fabric and is likely to be cutl bythe selvage cutter one pick before the incoming thread is cut. The outgoing Vthread extends to the lower part of the thread cutter and clamp mechanism and, being cut iirst, falls out ofthe path of the descending incoming thread when the latter is cut at the selvage. This relationship is attained by having the thread clamp 4for the outgoing thread below the hooi:

for the incoming thread,'and as a result of this relationship each thread has opportunity to enter the pneumaticthread remover without being "interfered with by the other thread.

lWith these and otherobjects in view which will appear as the description proceeds, my invention resides in the combination and arrangepart of the loom frame being shown in section,

Fig. 3 is an enlarged view of the lower part of the cutter and clamp mechanism showing the parts thereon in normal position,

Fig. 4 is a rear elevation looking in the direction of arrow 4, Fig. 3,

Fig. 5 is an enlarged vertical section on line 5 5, Fig. 3,

Fig. 6 is a view similar to Fig. 3 but showing the cutter and clamp mechanism moved to shuttle detecting position and indicating the primary cutter and thread clamp in open position and the V auxiliary cutter in closed position,

Fig. 7 is an enlarged detail front elevation of the pneumatic device looking in the direction of arrow l, Fig. 2,

Fig. 8 is a detailed plan view looking in the direction of arrow 8, Fig. 7, and

Figs. 9 to 20 are diagrammatic views indicating successive operations of the various parts of the invention and extending over a period including two replenishing operations.

Referring particularly to Figs. 1 and 2, I have shown a loom frame I8 and a lay`|| which is reciprocated in usual manner by the top shaft I2. The loom is provided with a magazine M which in the present instance is preferably of the wellknown stationary type to accommodate plural vertical stacks of reserve bobbins from which weft ends W extend to a pneumatic thread holder H.

The latter is associated with a thread accumula- Transfer of a bobbin from the magazine into the shuttle S in shuttle box I9 is eected by means commonly employed in stationary magazine weft replenishing looms and including a transferrer arm 28 provided with alatch 2| which can be lifted by mechanism not shown but well understood into the path of a bunter 22 on the lay on those forward beats of the lay when replenishment or transfer occurs.

Many stationary magazines which have gone into-use employa form of shuttle positiondetector or shuttle feeler designated generally at 25. This feeler moves pivotally around a stationary stud 26 and is positioned by an upwardly extending rod 21 controlled by mechanism not shown, see Fig. 2. Ordinarily, the rod 21 is in.

down position so that the head 28 at the lower part of the shuttle feeler 25 is in the forwardv will be engaged by the shuttle box back or some other part of the -lay designated at 29 to be moved to the position shown in Fig. 2. If the shuttle should not be properly positioned for transfer it will engage the head 28 and move the latter forwardly to its normal position at a somewhat earlier time in thecycle of the loom, and in doing so will prevent transfer in well-known manner.

The head 28 supports a horizontal stud 38 held in fixed position on the shuttle feeler by a nut 3|, see Figs. 4 and 5. The head is provided with a .fixed cutter plate or blade 32 and a movable cutter member 33 pivoted on stud 38. A primary thread clamp 34 is adjacent to the pivoted cutter member 33 and is held against angular movement on the head by the stud 38 and a pin 35 on the head 28. An auxiliary clamp 36 is held against the primary clamp by a leaf spring 31 secured to the shuttle feeler and is pivoted on a sleeve 38 slidable on stud 38 and urged to the left as viewed in Fig. 5 by a compression spring 39. The sleeve 38 extends through the clamps andV forces the pivoted or movable cutter member 33 against the xed blade 32.

The movable member 33 has a forward extension 40 and the auxiliary clamp similarly has a forward extension 4|, and both of these extensions are pivoted at 42 to the lower end of an ascending rod 43 the upper end of which is held by a stationary part of the magazine, such as the stand 44 for the stud 26.

When the shuttle feeler is in forward normal position the primary or usual cutter blade 45 of member 33 is in raised or closed position between the iixed cutter blade 32 and the primary clamp 34, and the rear part 46 of the auxiliary clamp is also in closed position in engagement with the,

right hand surface of the primary clamp 34 as viewed in Fig. 5. When the shuttle feeler moves rearwardly upon call for a replenishing opera-tion the rod 43 acts to cause pivotal movement of the cutter member 33 to swing blade 45 and clamp end 46 downwardly to the open position shown in Fig. 6. Under these conditions the shuttle feeler is in shuttle detecting position and as the lay advances the outgoing thread OT of the outgoing bobbin, see Fig. 10, will enter the notch above the cutter blade 45, provided the shuttle is properly positioned for transfer. Upon return of the head 28 to its normal forward position as the lay beats up rod 43 will cause the cutter blade 45 to rise and cut the thread OT and at the same time force against the clamp 34 that part CT of the thread OT extending between the head 28 and the selvage of the fabric F. Clamped thread CT now extends from the head 28 to the selvage and at some later beatup it will be cut at the selvage by the selvage cutter SC and hang down from the clamps. On the next call for transfer the clamps will open to release thread CT.

That part of the mechanism thus far described may be similar to mechanism heretofore used or shown in my copending application Serial No. 652,405, filed March 6, 1946, now Patent No. 2,446,444. Shuttle feeler cutter mechanisms such as shown in detail in Figs. 3 to 6 are not ordinarily used with pneumatic thread removing devices and because of this fact the clamped part CT of thread OT is not satisfactorily controlled after release and may fall on therlay and be drawn", into the warp shed.

In carrying my present invention into effect I provide pneumatic means located under the shut-4 aumen the front part of the lay. but I do not wish necessarily td be limited to this location. more particularly in Figs. 2, '7 and 8 I provide a support 50 bolted as at 8| to the upper front part of the lay and preferably bend this support forwardly so that the part thereof under headV 28 will be spaced forwardly from the lay. Secured to the support 50 is a downwardly extending tube As shown 1 to receive the thread CT hanging down from the clamps as the lay reciprocates.

The tube 52 is attached to a hose'55 which extends downwardly from the support 58 and then upwardly to communicate with the interior of the thread collector or accumulator i8. From this construction it will be understood that whenever partial vacuum is created within the thread collector during backward movement of the piston i there will be an inrush of air through the V-shaped mouth 54 into the tube 62.

After the thread CT has been cut at the selvage as will be described hereinafter and while still clamped by the head 28 it will be drawn pneumatically into the tube 52 due to back and forth motion of this tube betweenv the full and the dotted line positions shown in Fig. 2. When the lay is in rear position the thread CT will extend rearwardly from the clamp into the mouth, but as the lay moves forwardly to the dotted line position in Fig. 2 the thread will extend forwardly from the clamps. The thread will remain in the tube 52 until the next transfer is called, at which time it is released by the` clamps and will be sucked through the tube 52 and along the hose 55 into the thread collector it.

In order to control the incoming thread IT attached to the bobbin 56 which is transferred into shuttle S I provide hook means partly on the lay and partly on head 28. Accordingly, a hook til extending upwardly from a part of the shuttle box i9 is positioned for engagement with the incoming thread IT on the next beatup after transfer and is eiective to m-ove it over a forwardly facing hook 6i on the upper part of head 28. The movable cutter member4 33 has an auxiliary or secondary cutter blade G2 above blade l5 to cooperate withwa cutting edge. 63 on the upper part of the fixed cutter plate or blade 32. This last named cutting edge and the auxiliary blade are additions to the usual thread cutter mechanism customarily found on the head 28. Blade 62 is normally in the open position shown in Figs. 2 and 3 to form a thread receiving notch 64 with plate 32 when the head 28 is in its normal forward position, and the thread IT will lie under the auxiliary cutter blade 62 and forward of.

On the rst beatup of the lay after' transfer hook 60 on the lay moves the thread IT forwardly and over hook 6i to the position shown in Fig. 3

- under the auxiliary cutter blade 62. At thisY time threads CT and IT both extend from the head 28 to the selvage, thread CT being one pick ahead of thread IT at the selvage and being also under the thread IT at the head 28.

As weaving continues forward movement of the fabric will bring the threads CT and IT successively within the range of operations of the selvage cutter SC and these threads will be cut in the order named. When cut at theselvage thread CT will fall to a position directly under the head but will be attached to the latter by the clamps, and as the intake mouth M swings back and forth the lower end of thread CT will be drawn into the tube 82. That end of thread IT adjacent to the fabric when cut at the selvage will also fall from the head toward the reciprocating intake'mouth 8l and will be drawn into the tube 52.

It may be that instead of being cut on successive forward beats of the lay, the threads CT and 1T will be cut simultaneously, in which event they' will fall together to a position where they can enter the mouth 5l. Due to the fact. however, that thread CT is attached to the selvage at a point in front of the point of attachment of thread IT it will be cut at a timefno later than the cutting of thread IT and for this reason the thread CT will never be taut and extending across the path of the downwardly falling thread IT to interfere with its movement toward the path traversed by the mouth 54,

These two threads `will remain in tube 52 but will be supported by the head 28 until in the continued operation of the loom another replenishing operation is called. At this time the head will be moved rearwardly, thread CT will be released as' already described and thread IT will be cut by the blade 52. These threads will then be drawn into the tube by the subatmospheric pressures existing therein. It will be understood that when the head 28 moves forwardly from its shuttle detecting position to normal position the blade G2 will be moved to open position and thread IT from the incoming bobbin will not be pushed over the hook 6l until the next beatup. Blade 82 is therefore always raised to receive a thread IT when the latter moves over .hook 6l.

Certain operations of the pneumatic remover' and thread holder, Vthe clamps, and the cutter blades covering a span of two replenishing operations are shown diagrammatically in Figs. 9 to 20. In Fig. 9 the shuttle is shown as moving toward` the magazine end of the loom where it is destined for replenishment, a condition requiring that the head lill be in rear position while the lay is still behind the fell. In Fig. 10 the shuttle is boxed and its thread OT extendsfrom the cloth to the shuttle, the lay moving forwardly and being approximately on bottom center position. In Fig. 11 the lay is near front center and the head. 28 has been moved forwardly by the lay to cut the thread OT and clamp the -part CT thereof. Fig. 12 shows the lay on front center with the ejected bobbin B being discharged from theshuttle and carrying with it that part of thread OT to the right of head 28. The latter has by this time been returned to its forward position. Fig. 13 suggests a condition occurring closely following the conditions indicated at Fig. 12 with the thread IT of the incom ing bobbin extending'from the thread holder H into the shuttle. Fig. 14 indicates the position of the lay at the time of picking and suggests that the incoming thread IT lies behind the head 28. Fig. 15 indicates the next front center position of the lay withv hook 60' placing the thread IT over the hook 6I and under the auxiliary cutter y tion and selvage cutter SC has cut the thread but is still attached to the clamp. Fig. 17 is two picks after Fig. 16 and the left end of thread IT has been cut at the selvage and drawn into tube 52. The thread conditions shown in Fig. 17 continue for a number of picks until the next transfer, thread CT being clamped and thread IT not yet cut by blade 62. The partial vacuum existing in the tube -52 will hold these threads taut, but

will not be able to remove them.

Fig. 18 sets forth the conditions incident to the next calll for transfer occurring several picks after 'Fig'. 17. As the head 28 moves rearwardly again for the next replenishing' operation while the lay IT is cut by blade 62; Both of these threads are still in tube 52. In Fig. -l9 the lay is 'shown at front center and conditions for the new outgoing and incoming threads .will be similar to those shown in Fig. l2.4 As the lay moves rearwardly. as in Fig. 20 the partial vacuum in tube 52 removes is advancing thread CT is unclamped and thread the threads in it, vand the thread holder H removes the right hand part of thread IT. The

threads of one transfer are therefore effectively` narily operate subsequent to selvage cutting and-- after the free end of the incoming thread has had an opportunity to enter the pneumatic thread remover. The mechanism operates in such man.y

ner as to clear itself of the threads incident to any given transfer before acting on the' threads of the next transfer Furthermore,`the thread iirst to be cut at 'the selvage leads tothe lower part of the thread cutter and clamp and falls toward the pneumatic thread'remover before the incoming thread is cut at the selvage. By this order of operation and relation of threads the lower thread falls to a non-interfering position before the upper thread is cut. Both the outgoing and the incoming threads will ordinarily be cut at the selvage and have an opportunity to enter the pneumatic thread remover before they are released by the thread cutter and clamp. Also, the auxiliary cutter blade is open on forward movement of the head 28 incident to a transfer and is therefore in position to receive the incoming thread incident to that transfer on the next beatup of the lay.

Having thus described my invention it will be seen that changes and modifications may b e made therein by those skilled in the art without departing from the spirit and scope of the invention and I do not wish to be limited to the details herein disclosed, but what I claim is:

1. I n a weft replenishing loom having a lay along which a thread extends from a depleted shuttle to the adjacent selvage, cutter and clamp mechanism between the selvage and shuttle effective to c'ut said thread and clamp the part thereof extending from the mechanism to the selvage, a selvage cutter effective to sever said part of the thread at. they selvage subsequent to clamping thereof, whereupon said part of the thread depends from the cutter and clamp mechanism, and a pneumatic thread remover on the lay traversing a path below said cutter and clamp mechanism Aand into which the lower end of said part of the thread is drawn pneumatically subsequent to cutting at the selvage while still held by said mechanism, the latter subsequently releasing said part of the thread and the latter then being drawn ino said pneumatic remover.

2. In a weft replenishing 1oom having a lay along which a thread extends from a depleted shuttle to the adjacent selvage, cutter and clamp mechanism normally in closed forward position, said mechanism moving rearwardly .and opening to receive said thread incident to a replenishing operation of the loom and kthen returning to closed forward position to cut said thread and clamp that part" thereof extending from the mechanism to the selvage, means operative subsequent to said forward movement of said mechanism to cut said part of the thread at the sel-'- vage, whereupon the thread hangs from' said clamp, and a pneumaticthread remover in which subatmospheric pressures exist on the lay traversing a path under said mechanism and operative due to motion thereof and the subatmospheric pressures therein to effect entry of the ylower cnd of said part of the thread thereinto while said thread is still clamped by the mechanism, said mechanism upon a subsequent rearward movement thereof releasing said thread and the latter thereupon being drawn into said pneumatic thread remover. l

3. In a weft replenishing loom in which a thread extends from a depleted shuttle to the adjacent cloth selvage, cutter and clamp mechanism intermediate the shuttle and selvage effective on a replenishing operation of the loom to cut the thread between the shuttle and the selvage and clamp that part thereof extending from said mechanism to the selvage, means subsequently cutting said part of the thread at the selvage while 'said part is clamped by the mechanism and said part of the thread thereafter hanging from said mechanism, a pneumatic thread remover under said mechanism, and means causing said pneumatic remover to traverse a path adjacent to the lower end of said part of the thread, said remover drawing the lower end of said part of the thread thereinto while the upper end of said part of the thread is clamped, and said mechanism subsequently unclamping the upper part of said thread.

4. In a. weft replenishing loom in which a thread extends from a depleted shuttle to the adjacent cloth selvage, cutter and clamp mechanism normally closed and in forward position and effective incident to a replenishing operation of the loom to move rearwardly to open position to receive said thread and then move forwardly to cut said thread and clamp that part thereof extending to the selvage, means to cut said part at the selvage subsequent to said forward movement of the mechanism, said part of the thread thereupon depending from said clamp, and a pneumatic thread remover moving in a path adjacent to the lower end of said part of the thread and leffective to draw said lower end thereinto while the upper end of said part of the thread is still clamped, said mechanism upon the next transferring operation of the loom moving rearwardly to release said part of the thread and said remover thereupon drawing said part of the thread thereinto.

5. In a weft replenishing loom in which a thread extends from a depleted shuttle to the adjacent cloth selvage, the loom having provision for cutting said thread at the selvage, clamping meansnto clamp part of the thread extending from the selvage prior to cutting thereof at the selvage, the thread depending from said clamp 10 from said point to said remover will be drawn into the latter.

10. In a weft replenishing loom having a reciprocating lay and having a thread adjacent to said layl extending from a pneumatic thread holder to the cloth selvage, a pneumatic thread -said clamping means and the selvage prior to cutting at the selvage and effective to support said part of the thread subsequent to cutting at the selvage, said part of the thread depending from the clamp means, and a pneumatic thread removermoving relativel,7 to the clamping means along a path below said clamping means and in `position to attract thereinto the lower end of said part of the thread while the upper end thereof is -still held by said clamping means, the

latter eventually releasing said upper end by said part of the thread and the latter thereupon being drawn into said pneumatic remover.

7. lin a weft replenishing loom having a pneumatic thread holder from which a thread extends to the adjacent selvage subsequent to a replenishing operation oi the loom, means to support said thread at a point intermediate the thread holder and the selvage, means to cut said' thread at the selvage, whereupon that part of said thread between said point and said selvage depends from said supporting means, a pneumatic thread remover under said supporting means into which that part of the thread severed from the selvage is drawn, and means thereafter to cut said thread aty said point, whereupon that part of the thread between said point and said remover is drawn into the latter and that part ci' the thread between said point and said thread 4corresponding to an incoming bobbin and also holder is subject to an attractive force exerted l by the thread holder.

8. In a weft replenishing loom having a thread` said thread at a point between the thread holder 1 and selvage, a pneumatic thread remover below said supporting means, means to cut said thread at the selvage, whereupon that part of said thread cut from the selvage depends'from said supporting means and is attracted into said pneumatic remover, and subsequently acting means to cut said thread at a point adjacent to said supporting means.

9. In a weft replenishing loom having a thread holder from which a thread extends to the adjacent selvage subsequent to a replenishing operation of the loom, supporting means for said thread engaging the latter at a point intermediate the thread holder and the selvage, a pneumatic thread remover under said supporting means, means to cause reciprocation of said remover along a path below said supporting mean-s, means to cut said thread at the selvage, whereupon that part of said thread cut from the selvage falls toward said path and is drawn into said pneumatic remover while the thread is still supported by said supporting means, and subsequently acting means to cut said thread at a point therealong between the thread holder and said pneumatic remover,

whereupon that part of the thread extending and forwardly with the lay, supporting means above said remover to engage and support said thread between thethread holder and the selvage, means to cut said thread at the selvage, whereupon that part of the thread cut from the selvage hangs downwardly from said supporting means adjacent to said remover and is drawn into the latter, and subsequently acting means to cut said thread along the length thereof at apoint between the thread holder and the remover, whereupon that part of the thread between said point and remover is drawn into the latter and that part of the thread between said point and the thread holder is drawn into said thread holder.

l1. In a weft replenishing 10pm having a thread corresponding to an outgoing bobbin attached to the selvage at a point in front of a second thread attached to the cloth selvage, cutter and clamp mechanism to the lower part of which the drst named thread is clamped and on the upper part 4or which the second thread is supported, a pneumatic thread remover under said mechanism, mean-s to cut the rst named thread at the selvage and thereafter cut said second thread `at the selvage as said threads move forwardly with the cloth, the first thread when cut at the'selvage falling while clamped by said mechanism toward said remover at a given time and the .second thread when cut at said selvage at a later time falling toward said remover.

l2. In a cutter and clamp mechanism for two threads extending from the selvage of the cloth in a weft replenishing loom, one of said threads corresponding to the outgoing bobbin :and the other thread above said one thread and corresponding to the incoming bobbin incident to a replenishing operation of the loom, said mechanism having cutting and clamping means for said one thread movable in one direction relatively to said mechanism to eut and clamp said one thread, and said mechanism having a second cutter movling with and above said cutting and clamping .corresponding to the outgoing bobbin and the other thread above said one thread and corresponding to the incoming bobbin incident to -a replenishing operation of the loom, said mechanism having cutting and clamping means for said one thread movable relatively to said mechanism to cut and clamp said one thread, and said mechanism having a second cutter above said cutting and clamping means to cut said other thread, and a hook on said mechanism to position said other thread for cutting by said second cutter. l

14. In thread cutter and clamping mechanism for two vertically spaced threads in a loom, cutter and clamp means movable in one direction with respect to the mechanism for action on 'the lower one of said threads, and an auxiliary cutter moving with and located above said cutter and clamp plenishing loom, movable cutter and clamp meansl mounted on said mechanism to cut and clamp the lower one of said threads, an auxiliary cutter connected to said meansand movable therewith on said mechanism to cut the upper one of said threads, and a hook on said mechanism to hold the upper one of said threads in cutting position with respect to said auxiliary cutter.

16. In thread cutting and clamping means for two vertically spaced threads of a weft replenishing loom, said mechanism including a head, a cutter having primary and auxiliary cutter blades, one below the other, mounted on the head for movement relatively thereto in opposite directions, and a cutter plate fixed with respect to the head to cooperate with said primary and auxiliary blades, said primary blade effective to sever the' lower one of said threads when the blades move in one direction relatively to said head and said auxiliary blade eiective to sever the upper one oi said-threads when the blades move in the opposite direction relatively to said head.

17. In thread cutting and clamping mechanism for two threads of a weft replenishing loom, said mechanism including a head, a cutting member pivotally mounted on the head and having a primary blade and a secondary blade spaced from the primary blade, a cutter plate :dxed on said head to cooperate with both oi' said blades, said plate cooperating with one of said blades to have a cutting operation with respect to one of lsaid threads when said member pivots in one direction relatively to said head, and said plate cooperating with the other of said blades to have a cutting operation with respect to the other of said threads when said member pivots in the opposite direction relatively to said head. Y

18. In a weft replenishing loom in' which successive replenishing beats occur and in which a thread extends from a thread holder to the selvage on the beat of the loom next following each replenishing beat, normally open cutter means defining a notch to receive said threads, means closing said cutter means on each replenishing beat of the loom and then immediately opening said cutter prior to the beat next following, and means effective on the beat of the 'loom next .following each replenishing beat to move the thread extending between the thread holder and the selvage into said notch.

19. In a weft replenishing loom in which successive replenishing beats occur, and in which a thread extends from a thread holder to the selvage on the beat Vof the loom next following each replenishing beat, normally open cutter means dening a notch to receive said threads, means closing said cutter on each replenishing beatof the loom and then immediately opening said cutter prior to the beat next following, means effective on the beat of the loom next following each replenishing beat to move the thread extending between the thread holder and the selvage into said notch, and retaining means eiective to hold said thread in said notch and in position to be cut by cutting relation with said cutter means.

RICHARD G. TURNER.

REFERENCES CITED The following references are of record in the `file of -this patent:

UNITED STATES PATENTS 

